United States. Department of Agriculture. Office of the Secretary. (1919). Italian rye-grass (Lolium multiflorum). U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Agriculture. Office of the Secretary. Italian Rye-grass (Lolium Multiflorum). Washington: U.S. GPO, 1919.
MLA (9th ed.) CitationUnited States. Department of Agriculture. Office of the Secretary. Italian Rye-grass (Lolium Multiflorum). U.S. GPO, 1919.
Warning: These citations may not always be 100% accurate.